The blockchain is the only truth
At the time I wrote this, this transaction had 204 confirmations. That said, it was definitely received.
If the address is correct and the recipient says that he has not "received" it, then he is wrong. Either their wallet is out of sync or they are wrong (or lying to you)
Note that Bitcoin does not send money from wallet to wallet. It is not a process that takes some time between sending and receiving. At no time is money really out of one wallet and "on the way" to another wallet.
The only thing that is transferred is a new block to be transferred to each Knots (wallets, etc.) in the Bitcoin world about every ten minutes. As long as you have the latest block, you know exactly which address the money has.
The following is to clarify my point of view that the process does not take time. You should skip it unless you are interested in this detail or find it controversial.
Let's take a closer look at what happens when you make a typical Bitcoin payment. Keep in mind that Bitcoin is quite complex, so I'll simplify it. There are exotic payment methods that I will not cover (RBF, n of m, …). My knowledge is limited, but I think I can shed some more light on this.
When you make a payment in your wallet, your wallet creates a kind of transaction proposal. This suggestion will be sent to some nearby nodes on the Bitcoin network.
After submitting this offer, your wallet will mark the amount entered as reserved for this transaction and will not let you try again to spend it. However, your wallet will know that this amount is still under your control and still as much "in your wallet" as ever and not yet in someone else's wallet.
After a short time your planned transaction has been forwarded from node to node, will be checked on everyone and will reach some miners. Finally, a miner will integrate your planned transaction into a block and successfully dismantle that block.
Before that time, the miner considers the money yours. After this time, the miner considers the money as that of the recipient. There is no time when the miner sees the money as on the go.
The miner transfers the new block to nearby nodes. When each node finishes checking the new block, it is the moment when a particular node stops believing that the money is yours and starts believing that the money belongs to the recipient.
The new block is passed from node to node until it reaches your wallet. Once the verification is complete that the block is blocking your wallet, it no longer believes the money is yours and begins to believe (provisionally †) that the money now belongs to the recipient.
There is no time in between. No time in which your wallet believes that the money is not in any of the wallets that have been exchanged between wallets but not yet received. None of this is really possible.
There is time for the proposed transaction to circulate, but during this time all nodes consider the money as your money. All nodes accept other suggestions from you for another transaction with this money. This is because until one of these suggestions is contained in a mined block, the money is still yours and still is not being spent.
It takes time to pass on a transaction proposal. Mining takes time. The Bitcoin network is large, so there are times when some nodes have the latest block and others don't. We say the network has not reached consensus – although every node has no doubt whether the money is yours or the recipient's.
The change of ownership of the money takes place immediately (at each node separately) and the money is never really "between the wallets".
† Blockchain fork
Because there are many independent miners (and mining pools), two or more blocks may be mined at approximately the same time to be accepted as the generally accepted next block. This means that a recently accepted block is sometimes discarded in favor of another block on which a larger number of subsequent blocks have been mined "above" the block. For this reason, nodes usually wait for at least five blocks above the block to be fetched with your transaction (a total of six blocks) before accepting the change of ownership of the money as fully confirmed.
So there is a period of time between the first block and the sixth block when a node may consider the change in ownership of the money to be insufficiently confirmed. This does not mean that a knot is not sure who has the money. That doesn't mean the money is on the way. This does not mean that the Bitcoin network can conduct a second transaction to take money out of the recipient's wallet. This just means that the Bitcoin network may collectively decide that your proposed transaction has not been torn down at all. In most cases where this happens, the forgotten scheduled transaction is automatically added to a subsequent block and everything is fine and everyone forgets that hiccups ever occurred.
This does not happen with every transaction. It is rare. It is not really money that is "on the go" or "neither in your wallet nor" not received ".
Terminology and philosophical aspects
I talk about it above proposed Transactions and proposals, These words are generally not used in the Bitcoin community. Most of the talk is about transactions, unconfirmed transactions and confirmed transactions. I wanted to use another word to clearly identify a transaction that is in circulation and has not yet been cleared.
What's in your wallet
The reason I put "in your wallet" in fear quotes when I first mentioned it is because Bitcoin wallets don't really contain money. They contain a secret number called a private key, which you can use to prove that you control some money (have some money). Anyone who knows this PIN can remotely "take money out of their wallet" without having access to your wallet! Money is not stored in Bitcoin purses, but we do because it is a useful shortcut that makes it easier to talk about Bitcoin. This is a useful way to explain Bitcoin to beginners, although it is misleading and insecure,
Other people will believe that my description of how Bitcoin works puts too much emphasis on the underlying dry-technical (scary?) Nature of transactions and that it's better to describe the process as if paper notes were pulled out of your leather wallet and an intermediate organization would be pulled through and then placed in someone else's leather wallet. I agree that this view is useful, but I am concerned that it gives the impression that banknotes are not in the sender's wallet and not in the recipient's wallet, but in the hands of an intermediary who is asked to can return or intervene change the outcome. Consider a literal reading of the original title of the question at the top of this page.